COULEE DAM 1 SW, WA US
GHCN ID: USC00451767 · WA, US · 524.0 m elevation · Records 1934-2026 (92 years)
Primary station for Coulee Dam, WA.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 32.7°F | 23.3°F | 28.0°F | 1.15 in | — |
| February | 39.5°F | 25.3°F | 32.4°F | 0.88 in | — |
| March | 50.7°F | 31.5°F | 41.1°F | 1.07 in | — |
| April | 60.6°F | 37.7°F | 49.2°F | 0.97 in | — |
| May | 70.8°F | 45.8°F | 58.3°F | 1.11 in | — |
| June | 77.8°F | 52.0°F | 64.9°F | 1.15 in | — |
| July | 87.6°F | 59.4°F | 73.5°F | 0.49 in | — |
| August | 86.9°F | 58.3°F | 72.6°F | 0.33 in | — |
| September | 76.8°F | 50.5°F | 63.7°F | 0.36 in | — |
| October | 60.2°F | 40.1°F | 50.1°F | 0.94 in | — |
| November | 43.0°F | 30.9°F | 37.0°F | 1.20 in | — |
| December | 33.1°F | 23.9°F | 28.5°F | 1.42 in | — |